. >> these are penguins in captivity being studied in china. but this male penguin, the most dominant one on the screen, does something researchers have never seen before. >> is he playing momma? >> what? >> he swallowed the baby. >> he did, he just ate his baby penguin. whole. >> as researchers were watching the cameras, they saw this father penguin trying to feed the baby penguin. the baby wasn't eating so the father started pecking at the baby. and then just pulled it into its beak -- and swallowed it whole. >> a lot of animals in the animal kingdom. the males will eat the babies if they feel they're sick or unhealthy. >> most people agree that this kind of behavior never happens. >> this is really surprising. because a lot of people saw "march of the penguins." and saw the story about how penguins really care for the baby. >> in the penguin world it's the father who rests on the egg until the egg hatches, it's a huge job for the father and they're very involved in caretaking. >> was the chick alive? >> you do see the chick moving. >> you ca